Determination of atmospheric sulfur dioxide without tetrachloromercurate(ii): Further refinements of a pararosaniline method and field application
Determination of atmospheric sulfur dioxide without tetrachloromercurate(ii): Further refinements of a pararosaniline method and field application
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DOI：
10.1080/00022470.1981.10465276
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发表时间：
1981-07
期刊：
影响因子：
--
通讯作者：
P. Dasgupta
中科院分区：
文献类型：
--
作者：
P. Dasgupta
结果提出了一个副玫瑰苯胺的方法，确定二氧化硫通过利用无毒的热稳定的稀甲醛吸收剂缓冲在pH 4的现场应用。报告了联邦参考方法的平行结果。进一步改进的副玫瑰苯胺程序，包括染料试剂纯化和三氯乙酸缓冲系统的列入进行了说明。讨论了直接和反向试剂添加的优点和局限性。
Results are presented for the field application of a pararosaniline method which determines sulfur dioxide by utilizing a nontoxic thermally stable dilute formaldehyde absorber buffered at pH 4. Parallel results by the Federal Reference Method are reported. Further refinements of the pararosaniline procedure including dye reagent purification and inclusion of a trichloroacetic acid buffer system are described. Merits and limitations of direct and reverse reagent addition are discussed.